Where core balance CT’s are used?

Where core balance CT’s are used? 
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1 Answer

Answer :

In earth fault protection used. It senses the zero sequence current.  
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Related questions

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Where core balance CT is used?

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Last Answer : Core balance CT is used in earth fault protection.  

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Why is the stator core of Alternator laminated?

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Why not reduce the noise in the core by reducing the amount of flux?

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The area of the yoke in a transformer is taken 15 to 20% larger than that of the core. Why?

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In transformers, why the low voltage winding is placed near the core?

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Last Answer : The winding & Core are both made of metals and so an insulation have to be placed in between them, the thickness of insulation depends on the voltage rating of the winding. In order to reduce the insulation requirement the low voltage winding place near the core.

Why the cross-section of iron is less than total cross section area of core?

Description : Why the cross-section of iron is less than total cross section area of core?

Last Answer : This is because the core is laminated & on each lamination the insulations are are used.

Explain on the material used for core construction?

Description : Explain on the material used for core construction?

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What is the purpose of laminating the core in a transformer?

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Last Answer : In order to minimize eddy current loss.

Where is core type and shell type construction suitable for a transformer?

Description : Where is core type and shell type construction suitable for a transformer?

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What are the advantages of shell type transformer over core type transformers?

Description : What are the advantages of shell type transformer over core type transformers?

Last Answer : In shell type transformers the coils are well supported on the all sides and so they can withstand higher mechanical stresses developed during short circuit conditions. Also the leakage reactance will be less in shell type transformers.